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Date: Wed, 18 Oct 2006 08:20:35 -0700
From: Joe <js.lists@gmail.com>
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To: Erik Norgaard <norgaard@locolomo.org>
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Cc: Martin Turgeon <turgeon.martin@gmail.com>, freebsd-pf@freebsd.org,
	freebsd-bugs@freebsd.org, freebsd-questions@freebsd.org
Subject: Re: Routing with external interface doesn't work after a while
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Erik Norgaard wrote:
> There is some trick to handle that, IIRC something like this would do:
> 
> ext_if=fxp0 # external interface
> nat on $ext_if from <lan>  to !<lan> -> ($ext_if)
> 
> The () means that pf will lookup the ip on that interface, and update 
> dynamically when the ip changes.
>
That is correct.